Wear-compensating journal-box.



O. SEIVERT. WEAR OOMPENSATING JOURNAL BOX. APPLIGATION FILED AUG. 21,1913.

1 1 1 2,425 Patented .Sept. 29, 1914.

THE NORRIS PETERS 60., PHOTO-LITHO. WASHINGTON. D c,

CHRIST SEIVERT, 01? GAL IO NORTH DA KOTA.

WEAR-COMPENSA'IING JOURNAL-BOX.

Application filed August 21, 1913. Serial No. 786,002.

Specification of Letters Patent.

Patented Sept. 29, 1914.

To all whom it may concern:

Be it "known that I, CHRIs'r Snivnnr, a citizen of the United States,residing at Galio, in the county of Cavalier and State of North Dakota,have invented certain new and useful Improvements in VVear- CompensatingJournal-Boxes, of which the following'is a specification.

My invention relates to automatic adjusting wear compensating journalboxes of the type in which a beveled key or block is moved transverselyof the box to force one of the pillows or bearing blocks toward theother, thus compensating any wear thereof due to the rotation of theshaft.

The invention resides more particularly in the means for automaticallymoving, locking and adjusting this compensating block, also to the meansfor disengaging the locking means and to the means for removing the samewhen desired. its objects are to provide means for automaticallyadjusting and locking said block against reverse movement; to provideeasy and quick means for disengaging said locking means in order thatthe block may be adjusted to its origi nal or any intermediate position;to provide easy means for the removal of said block; to provide easymeans for adjusting the tension of the spring which actuates thecompensating block, and to strengthenand improve the box, all of whichobjects, among others, are accomplished by the construc tion,combination and arrangement of parts as hereinafter more particularlyset forth, described and claimed.

In the accompanying drawings; Figure 1 represents a side elevation of acrank-arm journal box with my invention applied thereto; Fig. 2, across-section on line 2-2 of Fig. 1; Fig. 3, a section on line 33 ofFig. 2, with the locking spring disengaging sleeve slipped on the bolt;and Fig. 1, a section on line l& of Fig. 2. 1

Referring now in detail to the drawings, A designates the crank arm orpiston rod; B its journal box; G, the inner pillow or bearingblock; D,the outer bearing block or pillow having its outer edge sloping orinclined, as is usual; and E, the shaft.

All parts sofar designated are old and well known and may be of any wellknown construction. Y

The compensating key or block 1.moves transversely of the box and hasits inner edge inclined at a corresponding angle.

reversely to, and cooperating with, the outer edge of block D. Thisblock or key 1 isheld by screw-thread engagement on a bolt 13 whichpasses freely through the end of the box opening, transversely thereto,and which is provided with screwthreads 2 from its lower end for thegreater part of its length. Its upper end is squared and provided withslanting, round cornered notches 3, for a purpose hereinafter explained.These notches are provided on all four-faces of the squared portion, notwo being in the same plane, and have their corners rounded, as stated,so that they really form one continuous thread, thus I call the notchesscrew or thread notches.

A strap 4, provided with a hole 5 in its bottom for the passage of thelower end of the bolt 13 passes around the boxing and is drawn tightlydown and around it by two tapering squared bolts 6 passing through itfrom opposite sides and bearing on the upper face of the boxing, beingdrawn tight by means of their respective nuts. The said strap has twoconverging extensions 7 rigid therewith and preferably integral, whichare similarly united or connected at their outer ends to a collar 8,which surrounds the square end of the bolt 13 as best shown in Fig.- 2.

A helical. spring 9 is'passed over the lower 1 thus regulating theautomatic downward movement of the compensating block 1 andthe'tightness of the bearing.

Four resilient keepers 11, of slightly different lengths, no two beingof the same length, are riveted at their upper ends to the extensions 7and the collar 8. These springs 11 are adapted to. engage, one at a timeonly,the notches 3 on the sides of the bolt 13 and,by reason ofthearrangement of the notches and the different lengths of the springs,they will lock the bolt and its block 1 against reverse movement after avery slight movement.

Should the wear on block D be excessive this. may be taken-up byinserting a thin metalplate 15 between the adjacent edges of blocks 1and D. To do this however it would be necessary to move block 1 to itsextremebuppermost position. This may be regulate the compression of thespring 9,

accomplished, for this or its upper end with any other purpose, byslipping the locking spring releasing square metallic sleeve 12 over thesquared part of bolt 13 and over the notches 3, thus disengaging thelocking springs 11 therefrom, allowing the bolt 13 and block 1 to beforced upward against the action of the spring 9. This sleeve 12 isprovided near perforations for the insertion of a nail or the like tofacilitate its withdrawal. I

Should it be desired to remove the bolt 13 and block 1 for the purposeof inserting a new block or bolt or both, or for any other purpose, thismay be accomplished by removing the nut 10 and spring 9, inserting anail or the like in perforation let in the squared upper part of bolt 13and screwing the latter out, the springs 11 following the notches andriding around their rounded corners the same as a nut. To facilitatethis action these notches are slightly inclined.

The operation is obvious from the foregoing.

All parts are to be made of metal or suitable material.

It is obvious that minor changes and alterations may be made in theconstruction, combination and arrangement of the various parts of myinvention, of which only the referred form is illustrated and describedfierein, without avoiding the spirit of my invention, which I desire tocover and fully protect by the following claims.

Having thus described my invention, what I claim as new and desire tosecure by Let ters Patent is:

1. A journal box, a block working therein, a strap surrounding the saidbox, means for drawing said strap tightly around said box and a collarcarried by said strap, in combination with a bolt screwthreaded in saidblock and passing freely through said box, strap and collar, said boltbeing provided on one end with screw-threads and on the other with screwnotches formed of a continuous thread, a plurality of resilient keepersof slightly different lengths carried by said strap and collar andengaging said notches one at a time, a nut and washer turned on thescrew-threaded end of said bolt and an actuating spring surrounding saidbolt and bearing against said strap and the washer to move said bolt andblock transversely of said box to compensate for wear.

2. A journal box, a compensating block working therein and a boltpassingfreely through said box, but fixedly connected to said block, said bolthaving one end squared and provided with screw-notches formed of acontinuous thread, in combination with a other spring acting to pullsaid bolt and block transversely of said box, resilient keepers ofdifierent lengths adapted to engage the notches on said bolt, only oneresilient keeper engaging the notches at one time, and supports for saidresilient keepers connected to the box.

3. In combination with a journal box a compensating key working thereina bolt having screw-threaded engagement with said key, a spring actingto pull said bolt and key transversely of said box means for adjustingthe tension of said spring and resilient means engaging said bolt toprevent the reverse movement of said bolt and key.

4. A journal box, a compensating block working therein and a boltpassing freely through said box, but fixedly connected to said block,said bolt having one end squared and provided with screw-notches formedof a continuous thread, in combination with a spring acting to pull saidbolt and block transversely of said box, means engaging said notches toprevent reverse movement of said bolt and supports for said meansconnected tosaid box.

5. A ournal box, a compensating key working therein and a bolt passingfreely through said box, but adjustably connected to said key, said bolthaving one end squared and provided with notches, in combination with aspring acting to pull said bolt and block transversely of the box, meansengaging said notches to prevent reverse movement of said bolt andsupports for the said means connected to said box.

6. In combination with a journal box and a wear compensating blockworking transversely therein, a bolt provided with notches connected tosaid block and passing freely through said box, a spring surroundingsaid bolt, means carried on the end of said bolt for compressing saidspring and means cooperating with said notches to prevent motion of saidbolt in one direction, while permitting it in the other, the said boltand compensating block being movable at will with relation to eachother.

7. In combination with a journal box and a wear compensating blockworking transversely therein, a bolt provided with a longitudinal seriesof notches, screw-threaded in said block and passing freely throughsaid. box, manually operated means for moving said bolt lengthwise toadjust said block and means engaging said notches to lock said boltagainst reverse movement.

In testimony whereof I aflix my signature in presence of two witnesses.

CHRIST SEIVERT.

Witnesses: I

TENNIs SnIvnRT, J HN SCHINDLER.

. M Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents,

Washington, D. G.

